JPH0228636Y2 - - Google Patents
Info
- Publication number
- JPH0228636Y2 JPH0228636Y2 JP907784U JP907784U JPH0228636Y2 JP H0228636 Y2 JPH0228636 Y2 JP H0228636Y2 JP 907784 U JP907784 U JP 907784U JP 907784 U JP907784 U JP 907784U JP H0228636 Y2 JPH0228636 Y2 JP H0228636Y2
- Authority
- JP
- Japan
- Prior art keywords
- mounting board
- heat sink
- hot air
- air heater
- bent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003825 pressing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Description
【考案の詳細な説明】
本考案は、正特性サーミスタ等の発熱素子を熱
伝導性の取付基板に熱的に密着装備するととも
に、前記取付基板の外側面に、屈折成形した放熱
体を添着してなる温風ヒータに関する。[Detailed description of the invention] The present invention includes a heat generating element such as a positive temperature coefficient thermistor that is thermally closely attached to a thermally conductive mounting board, and a refraction-molded heat sink is attached to the outer surface of the mounting board. Regarding hot air heaters.
従来のこのような温風ヒータとしては、第１図
および第２図に示すように、上下一対の取付基板
１，１の間に発熱素子としての例えば正特性サー
ミスタ２を密着挟持するとともに、各取付基板
１，１の外側面にジグザグ状に屈折成形した放熱
体４，４を接着剤を介して貼着し、この放熱体４
の浮き上がりを阻止するアーチ形の保持枠８を取
付基板１にかしめて取り付けるかまたはビス止め
で固定したものが考えられていた。しかし、この
ような構成のものは、放熱体４と取付基板１との
熱的結合の長期安定性、組み立て手数、使用部品
点数等の点から難点があつた。即ち、前記構成の
ものでは、放熱体４と取付基板１との熱的結合は
接着剤によつており、接着剤のみでは長期的に安
定した熱的結合は得難い。そこで、保持枠８で放
熱体４を支持することで熱的結合を補助している
のであるが、横に長い放熱体４を全長にわたつ
て、均一に支持することは困難であり、その保持
枠８の中央部はその両端に比較して支持力が弱
く、このためリブ９等の打ち出しによつて保持枠
８自体の剛性を高めてはいるが、万全とは言いが
たい。また、保持枠８は後組み部品であるために
放熱体４の接着工程で接着剤硬化期間中に治具等
で圧力をかける必要があり、組み立てに手数を要
していた。更に、保持枠８および取付基板１に取
り付けるために、かしめピンやビス等が必要で使
用部品点数も多く、かつその組み立て工程数も多
く必要であつた。 As shown in FIGS. 1 and 2, such a conventional hot air heater has a heating element such as a positive temperature coefficient thermistor 2 tightly sandwiched between a pair of upper and lower mounting boards 1, 1, and Heat sinks 4, 4 bent in a zigzag shape are attached to the outer surfaces of the mounting boards 1, 1 via adhesive, and the heat sinks 4
It has been considered that an arch-shaped holding frame 8 for preventing the floating of the holder 8 is attached to the mounting board 1 by caulking or fixed with screws. However, such a structure has drawbacks in terms of long-term stability of the thermal connection between the heat sink 4 and the mounting board 1, the number of assembly steps, and the number of parts used. That is, in the configuration described above, the thermal bond between the heat sink 4 and the mounting board 1 is achieved by the adhesive, and it is difficult to obtain a stable thermal bond over a long period of time using the adhesive alone. Therefore, thermal bonding is assisted by supporting the heat sink 4 with the holding frame 8, but it is difficult to support the horizontally long heat sink 4 uniformly over its entire length. The supporting force of the central part of the frame 8 is weaker than that of both ends, and therefore, although the rigidity of the holding frame 8 itself has been increased by punching out ribs 9, etc., it cannot be said to be perfect. Further, since the holding frame 8 is a post-assembled component, it is necessary to apply pressure with a jig or the like during the adhesive curing period in the step of adhering the heat radiating body 4, making assembly time-consuming. Furthermore, in order to attach it to the holding frame 8 and the mounting board 1, caulking pins, screws, etc. are required, which requires a large number of parts and a large number of assembly steps.
本考案は、上述の事情に鑑みてなされたもので
あつて、従来構造の前記欠点を一掃して、使用部
品点数および組み立て工程数が少なくて済むもの
でありながら、放熱体を取付基板に良好にかつ安
定した熱的結合状態に組み付けることができる温
風ヒータを提供することを目的とする。 The present invention has been developed in view of the above-mentioned circumstances, and eliminates the drawbacks of the conventional structure and allows the heat dissipation body to be mounted on the board while requiring fewer parts and fewer assembly steps. It is an object of the present invention to provide a hot air heater that can be assembled in a stable thermally coupled state.
以下、本考案を図面に示す実施例に基づいて詳
細に説明する。第３図は、この実施例の温風ヒー
タの全体を示す斜視図であり、第４図は第３図の
縦断側面図、第５図は第３図の分解状態を示す図
であり、これらの図において第１図および第２図
と対応する部分には同一の符号を付す。この実施
例の温風ヒータは、基本的には上下一対の熱伝導
性に優れた例えば金属製の取付基板１，１の間に
左右一組みの発熱素子としての例えば正特性サー
ミスタ２，２を密着挟持するとともに、両取付基
板１，１の両端間にスペーサ３，３を介在し、正
特性サーミスタ２，２に電圧を印加して発熱させ
るよう構成し、かつ取付基板１，１の外側面に、
金属製の帯板をジグザグ状に屈折成形してなる放
熱体４，４の各頭部をそれぞれ接着剤で貼着し、
放熱体４と取付基板１との間に形成された多数の
スリツトを通風路上に沿わせて、正特性サーミス
タ２からの発生熱を取付基板１および放熱体４を
介して気流中に放熱して温風を得るよう構成され
ている。なお、前記正特性サーミスタ２，２への
通電は、取付基板１，１を端子板や電極板として
利用して行なつてもよく、この場合は正特性サー
ミスタは絶縁外装が施されていてはならず、スペ
ーサ３は絶縁性のものが用いられる。 Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 3 is a perspective view showing the whole hot air heater of this embodiment, FIG. 4 is a vertical side view of FIG. 3, and FIG. 5 is an exploded view of FIG. 3. In the figure, parts corresponding to those in FIGS. 1 and 2 are given the same reference numerals. The hot air heater of this embodiment basically has a pair of left and right heating elements, such as positive temperature coefficient thermistors 2, 2, between a pair of upper and lower mounting boards 1, 1 made of metal, for example, with excellent thermal conductivity. In addition to tightly sandwiching the mounting boards 1, 1, spacers 3, 3 are interposed between both ends of the mounting boards 1, 1, and a voltage is applied to the positive temperature coefficient thermistors 2, 2 to generate heat, and the outer surface of the mounting boards 1, 1 is To,
Each head of the heat sink 4, which is formed by bending a metal band plate into a zigzag shape, is attached with adhesive,
A large number of slits formed between the heat sink 4 and the mounting board 1 are arranged along the ventilation path, and the heat generated from the PTC thermistor 2 is radiated into the airflow via the heat sink 1 and the heat sink 4. It is configured to generate warm air. Note that the PTC thermistors 2, 2 may be energized by using the mounting substrates 1, 1 as terminal boards or electrode plates; in this case, the PTC thermistors may be provided with an insulating exterior. Instead, the spacer 3 is made of insulating material.
ここにおいて、本考案の実施例では、取付基板
１に改造を加えることで放熱体４と取付基板１と
の熱的結合を確実なものにしている。即ち、取付
基板１の素材１′は第６図に示す形状に打ち抜か
れるとともに、切り込み５が入れられており、取
付基板１の前後方向での側辺からアーチ形枠部６
が折線ａに沿つて取付基板１外側面上に直角に起
立屈折されるとともに、この枠部６の上辺におけ
る内縁全長に、折線ｂに沿つて直角よりやや小さ
い角度で屈折した折り返し片７が形成されてい
る。そして、この折り返し片７の遊端と取付基板
１外側面との上下間隔が、放熱体４の上下高さよ
りも幾分小さく設定されている。 Here, in the embodiment of the present invention, the thermal coupling between the heat sink 4 and the mounting board 1 is ensured by modifying the mounting board 1. That is, the material 1' of the mounting board 1 is punched out in the shape shown in FIG.
is bent at a right angle on the outer surface of the mounting board 1 along the fold line a, and a folded piece 7 is formed on the entire length of the inner edge of the upper side of the frame 6 along the fold line b at an angle slightly smaller than the right angle. has been done. The vertical distance between the free end of the folded piece 7 and the outer surface of the mounting board 1 is set to be somewhat smaller than the vertical height of the heat sink 4.
このようにアーチ形枠部６を備えた取付基板１
への放熱体４の組み付けは、取付基板１の外側面
に接着剤を塗布した状態で放熱体４を折り返し片
７の突き出されていない側からアーチ形枠部６の
内部に挿入し、前記折り返し片７を多少弾性変形
させながら強く押し込むことで、放熱体４はその
全長にわたつて、強力かつ均一に取付基板１の外
側面に押圧されることになる。即ち、枠部６は、
放熱体４の押圧反力を縦向き板材として受けるこ
とになるので、押圧反力に対する剛性が極めて高
く、その中央部においても後退変形が少なく強力
な押圧状態を長期間持続する。なお、アーチ形枠
部６の構成および放熱体４の組み付け形態には、
各種の変形が可能であり、以下にそのいくつかを
例示する。 The mounting board 1 provided with the arched frame part 6 in this way
To assemble the heat sink 4 to the mounting board 1, apply adhesive to the outer surface of the mounting board 1, insert the heat sink 4 into the arched frame 6 from the side where the folded piece 7 is not projected, and then By strongly pushing the piece 7 while slightly elastically deforming it, the heat sink 4 is strongly and uniformly pressed against the outer surface of the mounting board 1 over its entire length. That is, the frame portion 6 is
Since the vertically oriented plate receives the pressing reaction force of the heat dissipating body 4, the rigidity against the pressing reaction force is extremely high, and there is little backward deformation even in the central part, so that a strong pressing state can be maintained for a long period of time. Note that the configuration of the arched frame portion 6 and the assembly form of the heat sink 4 are as follows:
Various modifications are possible, some of which are exemplified below.
ａ 前記折り返し片７を予め直角以上に屈折して
おき、アーチ形枠部６内に放熱体４を軽く挿入
してから、折り返し片７を放熱体４側に押圧変
形して放熱体４の全長に圧力をかけるようにし
て組み付けることもできる。a The folded piece 7 is bent at a right angle or more in advance, and the heat radiator 4 is lightly inserted into the arch-shaped frame 6, and then the folded piece 7 is pressed and deformed toward the heat radiator 4 so that the entire length of the heat radiator 4 is bent. It can also be assembled by applying pressure.
ｂ 第７図および第８図に示すように、一対のア
ーチ形枠部６，４を取付基板１の前後側辺から
切り出し屈折して取付基板１の外側面上に立設
して、放熱体４の押圧を一層確実にすることも
できる。なお、図示のように各枠部６，６の上
辺内縁の折り返し片７，７を互いに逆向きに屈
折する形態で（第９図参照）は、この折り返し
片７，７を放熱体挿入後に変形させる前記(a)の
方式が採用される。b As shown in FIGS. 7 and 8, a pair of arch-shaped frames 6 and 4 are cut out from the front and rear sides of the mounting board 1, bent, and erected on the outer surface of the mounting board 1 to form a heat sink. It is also possible to make the pressing in step 4 more reliable. Note that in the case where the folded pieces 7, 7 on the inner edge of the upper side of each frame portion 6, 6 are bent in opposite directions as shown in the figure (see Fig. 9), the folded pieces 7, 7 are deformed after inserting the heat sink. The method (a) above is adopted.
ｃ 第１０図は前後一対のアーチ形枠部６，６を
設けた形態において、各折り返し片７，７を同
一側に屈折した場合であり、このときは先の実
施例で述べたように放熱体４をアーチ形枠部
６，６内に強制圧入する方式で組み付けること
になる。c Fig. 10 shows a case where a pair of arched frame parts 6, 6 are provided at the front and rear, and each folded piece 7, 7 is bent to the same side, and in this case, as described in the previous embodiment, heat dissipation is performed. The body 4 is assembled by forcibly press-fitting into the arched frames 6, 6.
ｄ 第１１図はアーチ形枠部６に折り返し片７を
設けない形態であり、直角に起立した状態で枠
部６内に放熱体４を軽く差し入れた後、枠部６
全体を傾斜させてその枠部６の上辺内縁で放熱
体４を強く押圧する。d FIG. 11 shows a configuration in which the folded piece 7 is not provided on the arched frame 6. After lightly inserting the heat dissipating body 4 into the frame 6 while standing up at a right angle, the frame 6 is
The entire body is tilted and the heat sink 4 is strongly pressed by the inner edge of the upper side of the frame portion 6.
ｅ 第１２図は前記(d)の方式を一対のアーチ形枠
部６，６に適用した場合である。e FIG. 12 shows a case where the method (d) above is applied to a pair of arch-shaped frames 6, 6.
以上のように、本考案によれば、正特性サーミ
スタ等の発熱素子を密着した取付基板の前後方向
側辺からアーチ形枠部を切り出し屈折して取付基
板外側面上に立設し、この外側面とアーチ形枠部
との間に放熱体を嵌入したものであり、次のよう
な作用効果を発揮する。 As described above, according to the present invention, an arch-shaped frame is cut out from the front and back sides of a mounting board to which a heat generating element such as a PTC thermistor is closely attached, and is bent and erected on the outer surface of the mounting board. A heat sink is inserted between the side surface and the arched frame, and the following effects are achieved.
ａ アーチ形枠部が取付基板と直角またはほぼ直
角に対向する縦向き板部材として放熱体を押圧
するために、薄い板材でありながら押圧反力に
対する剛性が極めて高く、アーチ形枠部の中間
での後退変形が少なく、放熱体を押圧して長期
間、安定的に放熱体と取付基板との熱的結合を
良好に維持することができるようになつた。a The arch-shaped frame is a vertical plate member that faces the mounting board at right angles or almost right angles to press the heat sink, so although it is a thin plate, it has extremely high rigidity against pressing reaction force, and the middle part of the arch-shaped frame part With less backward deformation, it is now possible to press the heat sink and maintain good thermal bonding between the heat sink and the mounting board stably for a long period of time.
ｂ アーチ形枠部内への放熱体の挿入で、強力な
押圧がかけらるため、接着剤硬化期間中の押圧
用治具は、不要であり、組付工程の節減が可能
である。(b) Since strong pressure is applied when the heat sink is inserted into the arched frame, there is no need for a pressing jig during the adhesive curing period, and the assembly process can be reduced.
ｃ アーチ形枠部を取付基板から切り出し屈折し
てあるので、保持枠を別途装備していた従来構
造に比較して使用部品点数が少なく、組付手数
と製造コストの低減に効果的である。c. Since the arch-shaped frame portion is cut out and bent from the mounting board, fewer parts are used compared to the conventional structure in which a holding frame is separately provided, and this is effective in reducing the number of assembly steps and manufacturing costs.
第１図は、従来例の全体斜視図、第２図は第１
図の分解斜視図、第３図ないし第１２図は本考案
の実施例を示し、第３図はその実施例に係る温風
ヒータの全体を示す斜視図、第４図は第３図の縦
断面図、第５図は第３図の分解斜視図、第６図は
取付基板の素材を示す斜視図、第７図は取付基板
の斜視図、第８図は組付状態での斜視図、第９図
ないし第１２図は第８図に対応する他の実施例で
の縦断側面図である。
１は取付基板、２は正特性サーミスタ、３はス
ペーサ、４は放熱体、５は切り込み、６はアーチ
形枠部、７は折り返し片。
Figure 1 is an overall perspective view of a conventional example, and Figure 2 is a perspective view of a conventional example.
3 to 12 show an embodiment of the present invention, FIG. 3 is a perspective view showing the whole hot air heater according to the embodiment, and FIG. 4 is a longitudinal section of FIG. 3. 5 is an exploded perspective view of FIG. 3, FIG. 6 is a perspective view showing the material of the mounting board, FIG. 7 is a perspective view of the mounting board, and FIG. 8 is a perspective view of the assembled state. 9 to 12 are longitudinal sectional side views of other embodiments corresponding to FIG. 8. 1 is a mounting board, 2 is a positive temperature coefficient thermistor, 3 is a spacer, 4 is a heat sink, 5 is a notch, 6 is an arched frame portion, and 7 is a folded piece.
Claims (1)
るとともに、前記取付基板の外側面に、屈折成
形した放熱体を添着してなる温風ヒータであつ
て、前記取付基板の通風前後方向側辺からアー
チ形枠部を切り出し屈折して取付基板外側面上
に立設し、前記取付基板外側面と前記枠部との
間に放熱体を嵌入してなるなる温風ヒータ。 (2) アーチ形枠部の上辺内縁には、放熱体押圧用
折り返し片を連設してなる前記実用新案登録請
求の範囲第１項に記載の温風ヒータ。 (3) 取付基板の前後両側辺からそれぞれアーチ形
枠部を切り出し屈折してなる前記実用新案登録
請求の範囲第１項または第２項に記載の温風ヒ
ータ。[Claims for Utility Model Registration] (1) A hot air heater comprising a heating element mounted in close contact with a thermally conductive mounting board, and a refracted heat radiator attached to the outer surface of the mounting board. , an arch-shaped frame portion is cut out from a side of the mounting board in the ventilation front and rear direction, bent and erected on the outer surface of the mounting board, and a heat sink is fitted between the outer surface of the mounting board and the frame portion. A hot air heater. (2) The hot air heater according to claim 1, wherein a folded piece for pressing the heat radiator is continuously provided on the inner edge of the upper side of the arched frame portion. (3) The hot air heater according to claim 1 or 2, wherein arch-shaped frame portions are cut out and bent from both front and rear sides of the mounting board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP907784U JPS60121290U (en) | 1984-01-24 | 1984-01-24 | Hot air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP907784U JPS60121290U (en) | 1984-01-24 | 1984-01-24 | Hot air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60121290U JPS60121290U (en) | 1985-08-15 |
| JPH0228636Y2 true JPH0228636Y2 (en) | 1990-07-31 |
Family
ID=30488949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP907784U Granted JPS60121290U (en) | 1984-01-24 | 1984-01-24 | Hot air heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60121290U (en) |
-
1984
- 1984-01-24 JP JP907784U patent/JPS60121290U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60121290U (en) | 1985-08-15 |
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